opencv version, opencv4.0.1 platform, arm64 cmake, 3.10
if Enabled OpenVX, build error as following,
/home/b55880/work/opencv_pro/opencv/modules/imgproc/src/median_blur.cpp:994:44: error: expected initializer before ‘<’ token template <> inline bool skipSmallImages<vx_kernel_median_3x3>(int w, int h) { return wh < 1280 * 720; } ^ /home/b55880/work/opencv_pro/opencv/modules/imgproc/src/median_blur.cpp: In function ‘bool cv::{anonymous}::openvx_medianFilter(cv::InputArray, cv::OutputArray, int)’: /home/b55880/work/opencv_pro/opencv/modules/imgproc/src/median_blur.cpp:1010:28: error: ‘skipSmallImages’ is not a member of ‘cv::{anonymous}::ovx’ ksize != 3 ? ovx::skipSmallImages<vx_kernel_non_linear_filter>(src.cols, src.rows) : ^~~~~~~~~~~~~~~ /home/b55880/work/opencv_pro/opencv/modules/imgproc/src/median_blur.cpp:1010:28: note: suggested alternative: In file included from /home/b55880/work/opencv_pro/opencv/modules/imgproc/src/median_blur.cpp:51:0: /home/b55880/work/opencv_pro/opencv/modules/core/include/opencv2/core/openvx/ovx_defs.hpp:28:38: note: ‘cv::ovx::skipSmallImages’ template <int kernel_id=""> inline bool skipSmallImages(int w, int h) { return wh < 3840 * 2160; } ^~~~~~~~~~~~~~~ /home/b55880/work/opencv_pro/opencv/modules/imgproc/src/median_blur.cpp:1010:77: warning: left operand of comma operator has no effect [-Wunused-value] ksize != 3 ? ovx::skipSmallImages<vx_kernel_non_linear_filter>(src.cols, src.rows) : ~~~~^~~~ /home/b55880/work/opencv_pro/opencv/modules/imgproc/src/median_blur.cpp:1012:15: error: ‘skipSmallImages’ is not a member of ‘cv::{anonymous}::ovx’ ovx::skipSmallImages<vx_kernel_median_3x3>(src.cols, src.rows) ^~~~~~~~~~~~~~~ /home/b55880/work/opencv_pro/opencv/modules/imgproc/src/median_blur.cpp:1012:15: note: suggested alternative: In file included from /home/b55880/work/opencv_pro/opencv/modules/imgproc/src/median_blur.cpp:51:0: /home/b55880/work/opencv_pro/opencv/modules/core/include/opencv2/core/openvx/ovx_defs.hpp:28:38: note: ‘cv::ovx::skipSmallImages’ template <int kernel_id=""> inline bool skipSmallImages(int w, int h) { return wh < 3840 * 2160; } ^~~~~~~~~~~~~~~ /home/b55880/work/opencv_pro/opencv/modules/imgproc/src/median_blur.cpp:1012:57: warning: left operand of comma operator has no effect [-Wunused-value] ovx::skipSmallImages<vx_kernel_median_3x3>(src.cols, src.rows) ~~~~^~~~ /home/b55880/work/opencv_pro/opencv/modules/imgproc/src/median_blur.cpp:1018:33: error: ‘getOpenVXContext’ is not a member of ‘cv::{anonymous}::ovx’ ivx::Context ctx = ovx::getOpenVXContext(); ^~~~~~~~~~~~~~~~ /home/b55880/work/opencv_pro/opencv/modules/imgproc/src/median_blur.cpp:1018:33: note: suggested alternative: In file included from /home/b55880/work/opencv_pro/opencv/modules/imgproc/src/median_blur.cpp:51:0: /home/b55880/work/opencv_pro/opencv/modules/core/include/opencv2/core/openvx/ovx_defs.hpp:26:28: note: ‘cv::ovx::getOpenVXContext’ CV_EXPORTS_W ivx::Context& getOpenVXContext(); ^~~~~~~~~~~~~~~~ modules/imgproc/CMakeFiles/opencv_imgproc.dir/build.make:1072: recipe for target 'modules/imgproc/CMakeFiles/opencv_imgproc.dir/src/median_blur.cpp.o' failed make[2]: [modules/imgproc/CMakeFiles/opencv_imgproc.dir/src/median_blur.cpp.o] Error 1 CMakeFiles/Makefile2:1661: recipe for target 'modules/imgproc/CMakeFiles/opencv_imgproc.dir/all' failed make[1]: * [modules/imgproc/CMakeFiles/opencv_imgproc.dir/all] Error 2